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8. Level 3 Repair
NORMAL CONDITION
Catch the channel?
Check soldering
status(U2009) and the
voltage at
C2008,C2032 =1.0V &
C2013,C2017=1.8V &
C2018=1.2V
8-4-45. LTE B7 TX
No
No
Check RFS 1003
about
≥
23dBm?
Check the ANT, Sub PBA
Yes
Check L1011
≥
23dBm
No
Resolder or change
RFS1003, C1096, C1082
Yes
Check component
soldering status ok?
U1013, C1055, C1056
Resolder or change
U1013, C1055, C1056
No
Yes
Receiver is OK?
Resolder or change
UCP500
No
Yes
Yes
Resolder or change
U2009
No
END
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